This fixes various issues with getting no code-completion in top-level
code containing array/dictionary sugar, such as:
```
for x in [<HERE>] {}
for x in [1: 2, <HERE>] {}
```
And also removes the index variable from completions inside the sequence
(it was coming through as a local variable with <<error type>>).
rdar://problem/33884082
There was a ton of complicated logic here to work around
two problems:
- Same-type constraints were not represented properly in
RequirementReprs, requiring us to store them in strong form
and parse them out when printing type interfaces.
- The TypeBase::getAllGenericArgs() method did not do the
right thing for members of protocols and protocol extensions,
and so instead of simple calls to Type::subst(), we had
an elaborate 'ArchetypeTransformer' abstraction repeated
in two places.
Rewrite this code to use GenericSignatures and
GenericFunctionType instead of old-school GenericParamLists
and PolymorphicFunctionType.
This changes the code completion and AST printer output
slightly. A few of the changes are actually fixes for cases
where the old code didn't handle substitutions properly.
A few others are subjective, for example a generic parameter
list of the form <T : Proto> now prints as <T where T : Proto>.
We can add heuristics to make the output whatever we want
here; the important thing is that now we're using modern
abstractions.
If a declaration is marked deprecated (but not unavailable) we want to
mark it as "not recommended" so that users know this probably isn't what
you want. We already do something like this in Clang code completions of
deprecated ObjC declarations.
rdar://problem/26335424
With the tests updated to account for not having the correct behaviour
for brace-stmt items from after the code-completion point. That part
turns out to be harder to fix.
This reverts commit a5325e6281.
for i in <here> // should *not* show 'i'
for i in ... where <here> // should show 'i'
for i in ... { <here> // should show 'i'
Part of rdar://problem/24873625
We were miscalculating 'isRightBound' when the RHS was a code-completion
token leading to missing completions in unspaced binary expressions
1+<here>
1...<here>
rdar://problem/24278699
Most tests were using %swift or similar substitutions, which did not
include the target triple and SDK. The driver was defaulting to the
host OS. Thus, we could not run the tests when the standard library was
not built for OS X.
Swift SVN r24504
Introduce the new BooleanLiteralConvertible protocol for Boolean
literals. Take "true" and "false" as real keywords (which is most of the
reason for the testsuite churn). Make Bool BooleanLiteralConvertible
and the default Boolean literal type, and ObjCBool
BooleanLiteralConvertible. Fixes <rdar://problem/17405310> and the
recent regression that made ObjCBool not work with true/false.
Swift SVN r19728
